Question

The amount of heat produced in a conductor is
A- directly proportional to the current flowing through it
B- inversely proportional to the current flowing through it
C- directly proportional to the square of the current flowing through it
D- inversely proportional to the square of current flowing through it

Answer 1

C) directly proportional to the square of the current flowing through it

as according to formula-

H=i^2rt

Answer 2

ANSWER:

The correct option is c) "directly proportional" to the square of the "current flowing" through it.

EXPLANATION:

    When current if passed through a resistor, heat is produced, which makes the resistor hot. The formula for the heat produced in a resistor when current is passed through it in a time t is $\mathrm{i}^{2} \mathrm{rt}$.

   So, the amount of "heat produced in a resistor" is proportional to the square of the current passing through it in a time t.